Every week, we pose the important questions to our League of Extraordinary Retailers. Got a question you want us to ask? Email us at parallelworlds@nypost.com!

Here’s this week’s epic query:

Have you ever sold a book for far less than it’s worth, out of ignorance?

Ming Chen, AMC’s television show “Comic Book Men” and Jay and Silent Bob’s Secret Stash

Never. I have the two top dogs watching over me (some would even say breathing down my neck) and if it’s a comic book or comic book-related item and it has a cash value on it, Stash manager Walter Flanagan will make sure that we get every penny of value out of it. Selling it for any less would mean my head.

A customer came in and returned a $125 variant book that he regretted buying for Ultimates 3 #1, citing that he believed he could get it cheaper elsewhere. When we checked the receipt, it turned out I had accidentally charged him $1.25! You best believe he regretted returning it.

Other than that, these new Image #1’s seem to shoot up in price all over eBay. We’re well aware of the profit made on that route, but the fact is we don’t need to sell them by preying on what other people desire. We offer them for retail value, to everyone for as long as they last, and I think people are that much more grateful.

A book out of ignorance, no. I did incorrectly read an invoice once for some collectible figures and calculated the retail price way below what it should have been. It was in the early years of me working here. I can’t remember what the figures were, but I do remember we sold 2 before my manager caught it. I felt terrible about it when he did. The saving grace was they weren’t sold below cost. In any event, lesson learned and I have been way more cautious ever since.

Mitch Cutler, St. Mark’s Comics, 11 St. Marks Place, Manhattan

We HAVE sold books for less then they might be “going for,” but not out of ignorance…more like conscience. There will be some #1 of a recent book that just got optioned, and we find out people are asking $50. … What the heck?? $10 is plenty, thanks. We’re not interested in anybody feeling burned, we want them back!

I can’t say I have. I’m pretty careful when selling a higher-priced book to make sure I’m not ripping anyone off. This goes for lesser-priced books as well. Our back issue buyer, Alex Rae, is pretty spot-on when pricing books, he knows all the key issues.

I’ve been grading comics for almost 10 years, so I’ve got a pretty good eye as to what is an appropriate high/low range for a book. One of the owners of our store, Nick Purpura, likes to play a game where he names an item (in Diamond Previews, on ebay, that he found in storage) and ask me what I think it’ll sell for. I’m usually on the nose or a couple dollars off, but it tickles him that he can throw something at me and I’ll nail it. It’s like our version of “The Price Is Right.”

Never out of ignorance. When I first opened, Diamond sent me a bunch of variant covers as a “reward.” At first, I looked up their values, but as they all kept clocking in at $4 or $5 on eBay and $10-$15 in price guides, I just stopped.

Eventually, a customer asked me how much I wanted for the New 52 Justice League pencil variant that I had gotten the week before. “Well,” I say, “I usually sell those variants for $5-$10.” “That’s worth $200.” says he. After a bit of online snooping I see that he is, indeed correct.

“Listen,” I go, “I said $20, I stand by $20. As long as you promise this is for you, not just to sell.”

“Oh, he’ll keep it,” chimes in his mother, who had been silent the whole time. The grin on his face was worth it, any time.